计算【1/(x-2)】-【1/(x+2)】+【(x2-4x)/(x2-4)】
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/08 11:34:17
计算【1/(x-2)】-【1/(x+2)】+【(x2-4x)/(x2-4)】
计算【1/(x-2)】-【1/(x+2)】+【(x2-4x)/(x2-4)】
计算【1/(x-2)】-【1/(x+2)】+【(x2-4x)/(x2-4)】
原式=[(x+2)-(x-2)]/(x+2)(x-2)+(x2-4x)/(x+2)(x-2)
=4/(x+2)(x-2)+(x2-4x)/(x+2)(x-2)
=(x2-4x+4)/(x+2)(x-2)
=(x-2)2/(x+2)(x-2)
==(x-2)/(x+2)
=π =0 =213123。31411234123421341234
=[x+2-(x-2)]/[(x+2)(x-2)]+[x2-4x)]/[(x+2)(x-2)]
=(x2-4x+4)/[(x-2)(x+2)]
=[(x-2)(x-2)]/[(x-2)(x+2)]
=(x-2)/(x+2)
计算 x(x+3)-(x-1)(x-2)
(x-1)(x-2)计算
计算.(1+2/x-x+1/x-2)除以x+4/x平方-2x
计算.(1+2/x-x+1/x-2)除以x+4/x平方-2x
计算:(x+1)2次方+x(1-x)
计算 (x+1)(x的2次方-x+1)
计算5x(2x² -3x+1)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算:(x+2/x^2-2x-x-1/x^2-4x+4)×x/4-x
计算3x(x^2-x-1)-2x^2(1-x)
计算 2(x²-x+1)-(-2x+3x²)+(1-x)
计算,3x(x平方-2x-1)-2x平方(x-3)
计算:x²(x-1)-2x(x²-2x+3)
计算:1/(2x) - 1/(x+y)((x+y)/(2x) - x - y)
计算 ∫(x^4-2x^3+x^2+1)/x(x-1)² dx
计算2x/1-x+y/1·(2x/x+y-x-y)
计算:(1)(2x/x+2)的平方×x+2/x(x-2)-(1/x-2-1/x+2)
x^2-1/x^2+4x+4÷(x+1)×x^2+3x+2/x-1计算